That's a nice collection you've got there! As it stands, you have MX/MX-compatible Linears (in varying layouts) and a Topre board. I would recommend looking into MX/MX-Compatible Clicky/Tactile switches, Buckling Springs or Alps switches. You might also want to look into building or customizing a keyboard of your own, for many users it seems like the next step. Welcome to GeekHack!